Want to become familiar with the two different types of lithium-ion batteries: Lithium Cobalt Oxide (LiCoO2) and Lithium Iron Phosphate(LiFePO4) Lithium Cobalt Oxide, one of the most common Li-ions, has the chemical symbols LiCoO2 and the abbreviation LCO. And Lithium Iron Phosphate, has the chemical symbols LiFePO4 and the abbreviation LFP. Let us see their comparison.